Understanding License Periods and SSL Certificate Validity
Zane LucasShare
Two questions come up again and again, and both have the same answer. The first : you have paid for twelve months, so why is your SSL Certificate issued for a shorter period? The second : why must you reissue and reinstall it when your license still has months left to run?
The short version is that your license and your SSL Certificate run on two separate clocks. Your license is the period you have paid for. Each SSL Certificate issued under it lasts for a shorter, fixed period set by industry rules, and it is replaced as it expires.
Note : A license period and an SSL Certificate validity period are two separate things. The license is the total period you have paid for. The SSL Certificate validity is how long each issued SSL Certificate works before it must be reissued against that license.
Each period is worth looking at on its own, because the gap between them is where the confusion starts.
Your License Period
When you buy an SSL Certificate, you are buying a Trustico® license that runs for a set period, commonly one, two, three, four, or five years. That period is what you pay for, and it does not change.
The license is your entitlement. For as long as it stays active, you are covered for that domain, and you can obtain an SSL Certificate against it whenever you need one, at no additional charge.
Your SSL Certificate Validity
The SSL Certificate itself is a separate thing. Each one carries its own validity period, capped at the current industry maximum, and it stops working on its own expiration date rather than on the date your license ends.
So a twelve month license does not produce a single SSL Certificate that lasts twelve months. It produces an SSL Certificate that lasts up to the industry maximum, which is then replaced, again and again, across the whole license period.
Reissuing Within Your License
Replacing that SSL Certificate is called a reissue. Because the issued SSL Certificate expires on its own date, you request a fresh one against your still-active license before the current one runs out, then install it.
There is no additional charge for this. Within your license you can reissue as many times as you need, and the procedure is the same each time. The only thing that has changed over the years is how often you carry it out. Learn About Reissuing an SSL Certificate 🔗
Applies Across Every SSL Certificate
This is not specific to any one product. Every publicly trusted SSL Certificate works the same way, whether it is Domain Validation (DV), Organization Validation (OV), or Extended Validation (EV), and whether it covers a single site, a wildcard, or many domains.
The rules come from the Certificate Authority (CA) industry rather than from Trustico® itself, so they apply to every provider alike. Buying a longer license does not give an individual SSL Certificate a longer life. It simply gives you a longer period across which to reissue. Compare Your Options 🔗
Validity Periods Keep Shrinking
Those industry rules are making SSL Certificate validity shorter over time. The maximum lifetime fell to 200 days in March 2026, falls to 100 days in March 2027, and falls again to 47 days in March 2029.
Your license periods are unaffected, so this changes nothing about what you have paid for. It only means the reissue happens more often, which is the point at which doing it by hand starts to feel like a chore. Learn About Managing Short Validity 🔗
Automation Through Certificate as a Service (CaaS)
This is where Certificate as a Service (CaaS) changes the experience. It is designed to automate the whole cycle, so an Automatic Certificate Management Environment (ACME) client requests each reissue and installs it for you, with no manual step.
Once that is set up, the SSL Certificate validity period stops mattering to you in any practical sense. Whether each SSL Certificate lasts 200 days or 47, your automation simply replaces it in the background, and your site stays protected for the entire license period. Explore Certificate as a Service (CaaS) 🔗
Bottom Line
You are covered for the entire period you paid for. The reissue is simply how that cover is kept in place as each issued SSL Certificate is replaced, at no additional charge, on any product from any Certificate Authority (CA).
If you would rather not think about it at all, Certificate as a Service (CaaS) turns that repeated reissue into something automatic, so the validity of any single SSL Certificate never needs your attention again. Learn About Supported ACME Clients 🔗
